1.1 本试验方法包括根据规范测定B100生物柴油中颗粒污染物的质量 D6751 和BXX混合物，根据规范中允许的所有1号和2号燃料制备 D396页 和 D975 . 注1: 闪点低于38的中间馏分燃料 当燃料通过未充分粘合或接地的玻璃纤维过滤系统过滤时，静电放电点燃°C。请参阅指南 D4865 有关静电形成和放电的更详细讨论。 1.2 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 燃油中颗粒的质量以及单个颗粒的大小和性质是影响燃油系统滤清器和燃油系统中其他小孔堵塞速度的一个重要因素。本试验方法提供了一种评估燃料样品中颗粒质量的方法。 5.2 该试验方法可用于规范和采购文件中，作为控制所购燃料中颗粒污染水平的一种手段。

1.1 This test method covers the determination of the mass of particulate contamination in B100 biodiesel in accordance with Specification D6751 and BXX blends that are prepared against all No. 1 and No. 2 grade fuels allowed within Specifications D396 and D975 . Note 1: Middle distillate fuels with flash points less than 38 °C have been ignited by discharges of static electricity when the fuels have been filtered through inadequately bonded or grounded glass fiber filter systems. See Guide D4865 for a more detailed discussion of static electricity formation and discharge. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The mass of particulates present in a fuel is a significant factor, along with the size and nature of the individual particles, in the rapidity with which fuel system filters and other small orifices in fuel systems can become plugged. This test method provides a means of assessing the mass of particulates present in a fuel sample. 5.2 The test method can be used in specifications and purchase documents as a means of controlling particulate contamination levels in the fuels purchased.